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Add support for interfaceID.

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This commit is contained in:
Alexander Arlt
2020-04-16 12:17:40 -05:00
parent 7a9e024e90
commit 3754a86ab2
15 changed files with 304 additions and 12 deletions
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libsolidity/codegen/ir/IRGeneratorForStatements.cpp
+13
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@@ -754,6 +754,10 @@ void IRGeneratorForStatements::endVisit(FunctionCall const& _functionCall)
}
break;
}
case FunctionType::Kind::MetaType:
{
break;
}
default:
solUnimplemented("FunctionKind " + toString(static_cast<int>(functionType->kind())) + " not yet implemented");
}
@@ -904,6 +908,15 @@ void IRGeneratorForStatements::endVisit(MemberAccess const& _memberAccess)
{
solUnimplementedAssert(false, "");
}
else if (member == "interfaceId")
{
TypePointer arg = dynamic_cast<MagicType const&>(*_memberAccess.expression().annotation().type).typeArgument();
ContractDefinition const& contract = dynamic_cast<ContractType const&>(*arg).contractDefinition();
uint64_t result{0};
for (auto const& function: contract.interfaceFunctionList(false))
result ^= fromBigEndian<uint64_t>(function.first.ref());
define(_memberAccess) << formatNumber(u256{result} << (256 - 32)) << "\n";
}
else if (set<string>{"encode", "encodePacked", "encodeWithSelector", "encodeWithSignature", "decode"}.count(member))
{
// no-op